14661553523 has 4 divisors (see below), whose sum is σ = 15002519928. Its totient is φ = 14320587120.

The previous prime is 14661553499. The next prime is 14661553537. The reversal of 14661553523 is 32535516641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14661553523 - 2³² = 10366586227 is a prime.

It is a super-2 number, since 2×14661553523² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14661553553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170483138 + ... + 170483223.

It is an arithmetic number, because the mean of its divisors is an integer number (3750629982).

Almost surely, 2^14661553523 is an apocalyptic number.

14661553523 is a deficient number, since it is larger than the sum of its proper divisors (340966405).

14661553523 is an equidigital number, since it uses as much as digits as its factorization.

14661553523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340966404.

The product of its digits is 324000, while the sum is 41.

The spelling of 14661553523 in words is "fourteen billion, six hundred sixty-one million, five hundred fifty-three thousand, five hundred twenty-three".